Cell Structure and Function

Which of the following is a characteristic of plastids but NOT mitochondria?

• Have double membranes
• Can divide independently
• Contain DNA
• Contain specific pigments

Which statement about cristae is correct?

• They decrease the surface area
• They separate the matrix from the cytoplasm
• They store DNA
• They increase the surface area for ATP production

Which of the following statements about mitochondrial DNA is true?

• It is linear
• It is double-layered
• It is triple-helix shaped
• It is circular

Which organelle is more similar to prokaryotic cells in terms of structure and function?

• Nucleus
• Endoplasmic reticulum
• Golgi apparatus
• Mitochondria

Which plastid can change into another type depending on the plant's needs?

• Chromoplast
• Chloroplast
• Euglena plastid
• Leucoplast